I have been in the market for an older 2nd generation Dodge Ram Cummins to purchase for putting a flatbed on to use as a service rig and snowplow duties with a Boss V plow. Looking at a 97 with the 12 valve with club cab and long box, 4x4 and auto. Also looking at a 98.5 with the 24 valve equipped the same as the 97 except it has quad cab doors. 97 is stock and clean. 98.5 has airdog fuel pump system otherwise stock and clean. As far as maintainence and reliablity goes, which would I be better off in the long run?